JPH0233773Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to a fixing device for an ambulance bed.

<Prior Art> As shown in FIG. 4, this type of fixing device conventionally has a fixing hook 2 fixed to one end of a hollow bar 1 fixed along the inner wall A of the body of an ambulance, and a positioning hook 2 fixed to the other end. The piece 3 is provided with a movable hook 5 which is biased and engaged by a spring means 4 in the hollow bar 1, and the movable hook 5 is connected to an operating rod 6 provided at the end of the hollow bar 1.

To fix the bed, while hooking and locking one leg 7 to the fixing hook 2, push the operating rod 6 to separate the movable hook 5 from the positioning piece 3, and then fix the other leg of the bed. 8 to positioning piece 3
The movable hook 5 is brought close to the positioning piece 3 by placing the movable hook 5 adjacent to the positioning piece 3, and then the operating rod 6 is released, and the leg portion 8 is sandwiched between the two to perform fixation.

<<Problems to be solved by the invention>> However, in this case, the operation rod 6 must be pushed and released before fixing or releasing the bed, which requires a lot of effort. In addition, since the operating rod 6 is located parallel to the body wall surface, it is necessary to insert your hand between these rods to operate it, resulting in poor operability.
The drawback was that a large amount of time was lost when putting on and taking off the bed in an emergency.

The purpose of this invention is to solve the above-mentioned drawbacks and to provide a fixing device for an ambulance bed that allows the bed to be attached and detached with one touch without going through any troublesome procedures.

<Means for Solving the Problems> In order to achieve the above-mentioned object, in this invention, the structure of the operating rod is slidably attached to the outer periphery of the hollow bar, and is linked to a movable hook to maintain a constantly movable hook. A pipe portion that approaches and biases one side of the positioning;
An operating lever is provided integrally with the end of the pipe and rotates and locks the pipe in a position separated from the positioning piece of the movable hook, and is located near the operating lever and rotates the pipe in reverse by abutting against the bed. and an actuator for unlocking the lock.

<<Operation>> By pushing in and rotating the operating lever, the operating rod is locked against the hollow bar, and when the leg of the bed is brought adjacent to the positioning piece in that position, the actuator comes into contact with the bed, and this causes the operating rod to lock. It is unlocked and the movable hook locks the leg. Conversely, when the operating lever is operated to lock, the actuator comes into contact with the bed and pushes the bed out of the locked position and separates it.

<<Example>> Hereinafter, an example of this invention will be described in detail using the drawings. However, since the structure on the fixing hook side is the same as the conventional one, the overall structure will be omitted and only the main parts will be explained.

Fig. 1 is a perspective view of the main parts of the fixing device for an ambulance bed according to this invention, Figs. 2 a and b are explanatory views when the legs are locked, and Figs. 3 a and b are explanatory views when the legs are detached. It is.

The fixing device in the figure includes a hollow bar 10 fixed adjacent to and parallel to the inner wall of the body of the ambulance, and a positioning piece 12 fixed to the end side of the hollow bar 10.
and a movable hook 14 slidably provided on the outer periphery of the hollow bar 10 facing the positioning piece 12.
and an operating rod 16 that is slidably and rotatably provided at the end of the bar 10.

The movable hook 14 has a shape that matches the cylindrical shape of the leg portion 18 of the bed, and is connected to the operating rod 16 via the connecting rod 11 and has a mounting screw attached to the slider 13 that slides inside the hollow bar 10. 15, and the mounting screw 15 is engaged with a long hole 10a formed along the longitudinal direction of the hollow bar 10, thereby preventing the movable hook 14 from rotating.

The operating rod 16 includes a pipe section 20, an operating lever 22 provided at the end of the pipe section 20, and an unlocking actuator that projects from the outer periphery of the pipe section 20 at a predetermined angle with the operating lever 22. 2
It consists of 4.

The pipe portion 20 passes through the hollow interior of the hollow bar 10 in its inner cylindrical portion to the movable hook 14.
The slider 13 is pressed and biased toward the operating rod 16 by a spring means (not shown), so that the movable hook 14 is constantly pressed and biased toward the positioning piece 12.

Further, an L-shaped guide groove 26 for a slide guide and a rotation lock is formed in the pipe section 20, so that it can slide and rotate along a guide pin 28 protruding from the end of the bar 10. .

In the unlocked state (this refers to the unlocked state of the operating rod 16, which means that it is in the locked state with respect to the leg of the bed), the pipe section 20 protrudes toward the end of the hollow bar 10 by the spring means described above, and As shown in FIG. 2, the movable hook 14 comes into contact with the positioning piece 12, and in this state the leg part 18 is clamped and fixed between them.

From this state, as shown in FIG.
2 in the direction of the arrow, the movable hook 14 will be separated. When the lever is turned inward in this state, the L-shaped portion of the guide groove 26 enters along the guide pin 28, and the movable hook 14 is locked in the separated position.
At the same time, the actuator 24 is tilted forward, and a pipe 3, for example, shown in the figure, is installed on the side of the bed.
0 (see FIG. 3b) to push out the bed, so that the legs 18 of the bed are pressed against the hollow bar 10.
away from the sides.

Next, while maintaining this state, move the leg 18 as shown in Figure 3a.
When the actuators 24 are placed adjacent to each other as shown in FIG.
30, the pipe portion 20 rotates in the opposite direction from the state shown in the figure, and enters the unlocked state. Due to the biasing force of the spring means, the pipe portion 20 moves along the guide pin 28 again to the end of the hollow bar 10. The leg portion 18 is fixed as shown in FIG.

<<Effects of the invention>> As explained in detail in the above embodiments, according to this invention, the bed can be fixed simply by pressing the legs of the bed against the side of the hollow bar, and the tension and rotation of the operating rod can be fixed. Since the bed automatically moves away from the side of the bar when operated, the bed can be attached and detached with a single touch, and quick attachment and detachment can be performed without loss of time in an emergency.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the main parts of the fixing device for an ambulance bed according to this invention, and FIG. 2 shows the leg when it is locked.
Figure a is a plan view, Figure b is a side view, Figure 3 shows the leg when removed, Figure a is a plan view, Figure b is a side view, Figure 4 is the overall configuration of the conventional fixing device. FIG. 2... Fixed hook, 10... Hollow bar, 12...
...Positioning piece, 14...Movable hook, 16...Operation rod, 18...Leg part, 20...Pipe part, 22...
...Operation lever, 24...actuator for unlocking.

Claims (1)

[Scope of utility model registration request] A hollow bar fixed along the inner wall of the body of the ambulance, a fixing hook located at one end of the hollow bar that hooks and locks one leg of the bed, and a fixing hook located at the other end of the hollow bar that hooks and locks one leg of the bed. A positioning piece that contacts the leg of the hollow bar, a movable hook that holds the leg between the positioning piece, and an operating rod of the movable hook that is provided to protrude from the other end of the hollow bar, the operating rod being a pipe portion that is slidably attached to the outer periphery of the hollow bar and is connected to the movable hook to constantly position and bias the movable hook toward one side;
An operating lever is provided integrally with the end of the pipe and rotates and locks the pipe in a position separated from the positioning piece of the movable hook, and is located near the operating lever and rotates the pipe in reverse by abutting against the bed. A fixing device for an ambulance bed comprising a lock release actuator that releases the lock by moving the bed.